I'm trying to add text to an image but it says 'could not use the type tool because the file could not be found'. I keep photoshop on my external hardrive because I don't like to clog up my laptop and haven't had this issue on other laptops (I've just got a new one). Plugged it in to another and it works fine.

What could be the problem? I want to use this laptop for all my editing as it's much, much better than the one I was using previously. I'm using CS3. Tried contacting adobe directly but they just pointed me in the direction of the support website because I don't have CS6 - charming!

I'm using Windows 8 and the file is a JPEG file, if it helps. Just updated windows so the operating system isn't out of date.